EP0325318A3 - Switching exchange - Google Patents
Switching exchange Download PDFInfo
- Publication number
- EP0325318A3 EP0325318A3 EP19890200057 EP89200057A EP0325318A3 EP 0325318 A3 EP0325318 A3 EP 0325318A3 EP 19890200057 EP19890200057 EP 19890200057 EP 89200057 A EP89200057 A EP 89200057A EP 0325318 A3 EP0325318 A3 EP 0325318A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching exchange
- exchange
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
- H04Q1/22—Automatic arrangements
- H04Q1/24—Automatic arrangements for connection devices
- H04Q1/245—Automatic arrangements for connection devices in time-division multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3801123 | 1988-01-16 | ||
DE3801123A DE3801123A1 (en) | 1988-01-16 | 1988-01-16 | MEDIATION SYSTEM |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0325318A2 EP0325318A2 (en) | 1989-07-26 |
EP0325318A3 true EP0325318A3 (en) | 1990-11-14 |
EP0325318B1 EP0325318B1 (en) | 1994-08-17 |
Family
ID=6345401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89200057A Expired - Lifetime EP0325318B1 (en) | 1988-01-16 | 1989-01-11 | Switching exchange |
Country Status (4)
Country | Link |
---|---|
US (1) | US4995042A (en) |
EP (1) | EP0325318B1 (en) |
JP (1) | JP2849819B2 (en) |
DE (2) | DE3801123A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4964105A (en) * | 1988-11-01 | 1990-10-16 | Dsc Communications Corporation | Replacement switch |
GB8921082D0 (en) * | 1989-09-18 | 1989-11-01 | Plessey Telecomm | Message routing check system |
SE466475B (en) * | 1990-07-10 | 1992-02-17 | Ericsson Telefon Ab L M | SETTING AND DEVICE FOR MONITORING AND TESTING AT A MULTI PLAN UNIT IN A DIGITAL TIMER |
US5287344A (en) * | 1991-06-05 | 1994-02-15 | At&T Bell Laboratories | Transferring lines in a digital loop carrier transmission system |
DE4132552C1 (en) * | 1991-09-30 | 1992-11-12 | Siemens Ag, 8000 Muenchen, De | |
DE4226599C2 (en) * | 1992-08-11 | 1994-08-04 | Siemens Ag | Error detection method in digital communication systems |
DE4228361C1 (en) * | 1992-08-26 | 1994-04-14 | Siemens Nixdorf Inf Syst | Digital switching array for data communication system - combines individual collision signals with input transmission signals fed to coupling field inputs. |
DE4232955C2 (en) * | 1992-10-01 | 1995-02-23 | Philips Patentverwaltung | Switching system |
DK0598931T3 (en) * | 1992-11-20 | 2002-06-10 | Siemens Ag | Procedure for monitoring existing telephone connections, especially permanently linked telephone connections |
DE4326919A1 (en) * | 1993-08-11 | 1995-02-16 | Teves Gmbh Alfred | Control circuit for brake systems with ABS and / or ASR |
EP0665701A1 (en) * | 1994-01-26 | 1995-08-02 | Siemens Aktiengesellschaft | Method for monitoring the connection paths in a digital time division multiplex exchange |
US5937032A (en) * | 1995-11-29 | 1999-08-10 | Telefonaktiebolaget L M | Testing method and apparatus for verifying correct connection of curcuit elements |
KR100301575B1 (en) * | 1995-12-22 | 2001-11-22 | 박종섭 | Signal transmission apparatus |
US5903574A (en) * | 1997-04-18 | 1999-05-11 | Sarnoff Corporation | Studio transmitter link method and apparatus |
FI106422B (en) | 1998-03-06 | 2001-01-31 | Nokia Networks Oy | Certified wiring arrangement |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2718317A1 (en) * | 1977-04-25 | 1978-11-02 | Gen Electric Co Ltd | Telephony digital switching network - has error-code generator at each receive interface responding to received data packets and connected to two TDM switching matrices |
EP0219917A2 (en) * | 1985-10-22 | 1987-04-29 | Philips Patentverwaltung GmbH | Switching device with fault correction |
EP0273249A2 (en) * | 1986-12-31 | 1988-07-06 | International Business Machines Corporation | Fault tolerant switch with selectable operating modes |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3431557A (en) * | 1964-03-12 | 1969-03-04 | Bendix Corp | Monitoring system for redundant systems |
US3770948A (en) * | 1972-05-26 | 1973-11-06 | Gte Automatic Electric Lab Inc | Data handling system maintenance arrangement |
JPS5419128B2 (en) * | 1974-06-21 | 1979-07-12 | ||
JPS5155643A (en) * | 1974-11-11 | 1976-05-15 | Omron Tateisi Electronics Co | DENSHIKEI SANKISEIGYO HOSHIKI |
US4233682A (en) * | 1978-06-15 | 1980-11-11 | Sperry Corporation | Fault detection and isolation system |
US4271515A (en) * | 1979-03-23 | 1981-06-02 | John Fluke Mfg. Co., Inc. | Universal analog and digital tester |
DE2936439C2 (en) * | 1979-09-08 | 1983-02-17 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Arrangement for the asynchronous transmission of digital measured wheel speed values |
DE3003291C2 (en) * | 1980-01-30 | 1983-02-24 | Siemens AG, 1000 Berlin und 8000 München | Two-channel data processing arrangement for railway safety purposes |
JPS5736356A (en) * | 1980-08-12 | 1982-02-27 | Nippon Signal Co Ltd:The | Mutiplexing system |
JPS5857843A (en) * | 1981-09-30 | 1983-04-06 | Fujitsu Ltd | Check system for data line exchange |
DE3336747C2 (en) * | 1983-10-08 | 1985-11-28 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Method for evaluating a control code word consisting of several code elements |
JPS6182201A (en) * | 1984-09-29 | 1986-04-25 | Nec Home Electronics Ltd | Fail-safe controlling circuit |
-
1988
- 1988-01-16 DE DE3801123A patent/DE3801123A1/en not_active Withdrawn
-
1989
- 1989-01-09 US US07/296,269 patent/US4995042A/en not_active Expired - Fee Related
- 1989-01-11 EP EP89200057A patent/EP0325318B1/en not_active Expired - Lifetime
- 1989-01-11 DE DE58908195T patent/DE58908195D1/en not_active Expired - Fee Related
- 1989-01-13 JP JP505189A patent/JP2849819B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2718317A1 (en) * | 1977-04-25 | 1978-11-02 | Gen Electric Co Ltd | Telephony digital switching network - has error-code generator at each receive interface responding to received data packets and connected to two TDM switching matrices |
EP0219917A2 (en) * | 1985-10-22 | 1987-04-29 | Philips Patentverwaltung GmbH | Switching device with fault correction |
EP0273249A2 (en) * | 1986-12-31 | 1988-07-06 | International Business Machines Corporation | Fault tolerant switch with selectable operating modes |
Non-Patent Citations (2)
Title |
---|
INT. SWITCHING SYMPOSIUM, SESSION 212, PAPER 4 25 Oktober 1976, Kyoto JP Seiten 1 - 6; M. Karnaugh et al.: "Design considerations for a digital switch" * |
INT.SWITCHING SYMPOSIUM, SESSION 142, PAPER 3 25 Oktober 1976, Kyoto JP Seiten 1 - 6; A.S. Philip: "A multipurpose digital switching subsystem" * |
Also Published As
Publication number | Publication date |
---|---|
DE3801123A1 (en) | 1989-07-27 |
EP0325318A2 (en) | 1989-07-26 |
JP2849819B2 (en) | 1999-01-27 |
EP0325318B1 (en) | 1994-08-17 |
JPH025657A (en) | 1990-01-10 |
DE58908195D1 (en) | 1994-09-22 |
US4995042A (en) | 1991-02-19 |
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